Improper Input Validation Affecting apache2 package, versions <2.2.22-1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
92.39% (100th percentile)

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  • Snyk IDSNYK-DEBIAN10-APACHE2-391701
  • published28 Jan 2012
  • disclosed28 Jan 2012

Introduced: 28 Jan 2012

CVE-2012-0021  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:10 apache2 to version 2.2.22-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2 package and not the apache2 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.

References

CVSS Scores

version 3.1